From 639245060c021858c7f2bc9510d2dcdb68bf7b2b Mon Sep 17 00:00:00 2001 From: frank <839789740@qq.com> Date: Tue, 8 May 2018 00:00:13 +0800 Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E9=9F=B3=E9=A2=91=E7=BC=96?= =?UTF-8?q?=E7=A0=81=EF=BC=9Apcm=E7=BC=96=E7=A0=81=E6=88=90wav=E3=80=81aac?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 增加音频编码：pcm编码成wav、aac --- .../frank/ffmpeg/activity/AudioHandleActivity.java | 12 ++++++++++++ .../main/java/com/frank/ffmpeg/util/FFmpegUtil.java | 13 +++++++++++++ app/src/main/res/layout/activity_audio_handle.xml | 11 ++++++++++- app/src/main/res/values/strings.xml | 1 + 4 files changed, 36 insertions(+), 1 deletion(-) diff --git a/app/src/main/java/com/frank/ffmpeg/activity/AudioHandleActivity.java b/app/src/main/java/com/frank/ffmpeg/activity/AudioHandleActivity.java index 9732828..64a8832 100644 --- a/app/src/main/java/com/frank/ffmpeg/activity/AudioHandleActivity.java +++ b/app/src/main/java/com/frank/ffmpeg/activity/AudioHandleActivity.java @@ -67,6 +67,7 @@ public class AudioHandleActivity extends AppCompatActivity implements View.OnCli findViewById(R.id.btn_mix).setOnClickListener(this); findViewById(R.id.btn_play_audio).setOnClickListener(this); findViewById(R.id.btn_play_opensl).setOnClickListener(this); + findViewById(R.id.btn_audio_encode).setOnClickListener(this); } private void setVisible() { @@ -76,6 +77,7 @@ public class AudioHandleActivity extends AppCompatActivity implements View.OnCli findViewById(R.id.btn_mix).setVisibility(View.VISIBLE); findViewById(R.id.btn_play_audio).setVisibility(View.VISIBLE); findViewById(R.id.btn_play_opensl).setVisibility(View.VISIBLE); + findViewById(R.id.btn_audio_encode).setVisibility(View.VISIBLE); } private void setGone() { @@ -85,6 +87,7 @@ public class AudioHandleActivity extends AppCompatActivity implements View.OnCli findViewById(R.id.btn_mix).setVisibility(View.GONE); findViewById(R.id.btn_play_audio).setVisibility(View.GONE); findViewById(R.id.btn_play_opensl).setVisibility(View.GONE); + findViewById(R.id.btn_audio_encode).setVisibility(View.GONE); } @Override @@ -109,6 +112,9 @@ public class AudioHandleActivity extends AppCompatActivity implements View.OnCli case R.id.btn_play_opensl: handleType = 5; break; + case R.id.btn_audio_encode: + handleType = 6; + break; default: handleType = 0; break; @@ -155,6 +161,12 @@ public class AudioHandleActivity extends AppCompatActivity implements View.OnCli } }).start(); return; + case 6://音频编码 + //可编码成WAV、AAC。如果需要编码成MP3、AMR，ffmpeg需要重新编译，把MP3、AMR库enable + String pcmFile = PATH + File.separator + "audio.pcm"; + String wavFile = PATH + File.separator + "output.wav"; + commandLine = FFmpegUtil.encodeAudio(pcmFile, wavFile); + break; default: break; } diff --git a/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java b/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java index b904748..b8c7d05 100644 --- a/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java +++ b/app/src/main/java/com/frank/ffmpeg/util/FFmpegUtil.java @@ -211,4 +211,17 @@ public class FFmpegUtil { return combineVideo.split(" ");//以空格分割为字符串数组 } + /** + * 音频编码 + * @param srcFile 源文件pcm裸流 + * @param targetFile 编码后目标文件 + * @return 音频编码的命令行 + */ + public static String[] encodeAudio(String srcFile, String targetFile){ + String combineVideo = "ffmpeg -f s16le -ar 8000 -ac 1 -i %s %s"; + combineVideo = String.format(combineVideo, srcFile, targetFile); + combineVideo = combineVideo.replace("#", "%"); + return combineVideo.split(" "); + } + } diff --git a/app/src/main/res/layout/activity_audio_handle.xml b/app/src/main/res/layout/activity_audio_handle.xml index 26e0845..fb9b8ee 100644 --- a/app/src/main/res/layout/activity_audio_handle.xml +++ b/app/src/main/res/layout/activity_audio_handle.xml @@ -11,7 +11,7 @@ android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/audio_transform" - android:layout_marginTop="120dp" + android:layout_marginTop="80dp" android:layout_centerHorizontal="true"/>